'Seven' in the Bible

Those who were full have hired themselves out for bread. Those who were hungry have ceased [to hunger]. Yes, the barren has borne seven. She who has many children languishes.

The ark of Yahweh was in the country of the Philistines seven months.

"You shall go down before me to Gilgal; and behold, I will come down to you, to offer burnt offerings, and to sacrifice sacrifices of peace offerings: you shall wait seven days, until I come to you, and show you what you shall do."

The elders of Jabesh said to him, "Give us seven day, that we may send messengers to all the borders of Israel; and then, if there is no one to save us, we will come out to you."

He stayed seven days, according to the set time that Samuel [had appointed]: but Samuel didn't come to Gilgal; and the people were scattered from him.

Jesse made seven of his sons to pass before Samuel. Samuel said to Jesse, "Yahweh has not chosen these."

They took their bones, and buried them under the tamarisk tree in Jabesh, and fasted seven days.